Connecting The Loudspeakers; Wiring Convention; Damping Factor In Cable; Power Output Performance - Lab.gruppen TFS-900 User Manual

user manual
Flashline

4. Connecting the Loudspeakers

4.1 Wiring convention

CONFIGURED FOR TFS-900H

4.2 Damping Factor in cable

Turbosound recommends that for large scale PA use the total system damping factor should be 15 or greater. Longer
cables will reduce the overall damping factor of the system. In order to keep the damping factor over 15 it will be
necessary to increase the impedance of the load to keep the damping factor. Therefore for long runs Turbosound
recommends no more than two enclosures per amplifier. Turbosound recommends using 4mm
Cable size Length for 1 x TFS-900H (8 ohms)
mm m
2
2.5 38
4 60
6 90

4.3 Power Output Performance

Symmetrical Power
The 20000DP can deliver power as shown in the table below when all channels are driven equally.
Load Impedance (ohms)
20000DP Max power output (watts)
Asymmetrical Power
Load Impedance (ohms)
20000DP Max power output (watts)
Flashline User Manual
page 14
CONFIGURED FOR TFS-900B/L
Length for 2 x TFS-900H (4 ohms)
ft m
125 18
197 30
295 45
2.0
4800
2.0
5000
ft
59
98
148
2.7 4
5000 4440
2.7 4
5000 4500
CONFIGURED FOR 4-WAY
cable as standard.
2
Length for 3 x TFS-900H (2.6 ohms)
m ft
12 39
20 66
30 98
8 16
2300 1150
8 16
2300 1150